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In the past few years, much improvement in the trafficA.there has beenB.there ha

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In the past few years, much improvement in the trafficA.there has beenB.there ha

In the past few years, __________much improvement in the traffic

A.there has been

B.there has had

C.there have been

D.there had been

试题答案

A

试题

标签：muchyearsinimprovementthe

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